Original Investigation | Substance Use and Addiction Association of Recreational Cannabis Legalization With Maternal Cannabis Use in the Preconception, Prenatal, and Postpartum Periods Kara R. Skelton, PhD; Amelie A. Hecht, PhD; Sara E. Benjamin-Neelon, PhD, JD JAMA Network Open, 2021, 4, (2), 1-12, e210138. doi : 10.1001/jamanetworkopen.2021.0138   Abstract IMPORTANCE : Recent studies have revealed increases in population-level cannabis use after legalization of recreational cannabis. However, the association of cannabis legalization with maternal cannabis use during important life stages remains unknown. OBJECTIVE : To investigate the association of legalization of recreational cannabis with maternal cannabis use during the preconception, prenatal, and postpartum periods. DESIGN, SETTING, AND PARTICIPANTS : This repeated [...]